Role of tramadol as an adjuvant in ultrasound-guided serratus anterior muscle block for modified radical mastectomy - A randomized control trial.

Background And Aims: Modified radical mastectomy (MRM) is associated with significant acute post-operative pain that may progress to chronic pain syndromes in 25-60% of patients. Serratus anterior muscle (SAM) block has proved to be an excellent analgesic option in patients undergoing MRM. Although many adjuvants have been utilized for the prolongation of analgesia, the role of tramadol in SAM has not been studied as yet.